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CAS RN: 55727-23-6 | Product Number: D4208
3-(1,3-Dithian-2-ylidene)-2,4-pentanedione
Purity: >98.0%(GC)
Size | Unit Price | Philadelphia, PA | Portland, OR | Japan* | Quantity |
---|---|---|---|---|---|
1G |
$106.00
|
Contact Us | Contact Us | 1 |
|
5G |
$356.00
|
1 | 1 | 1 |
|
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Product Number | D4208 |
Purity / Analysis Method | >98.0%(GC) |
Molecular Formula / Molecular Weight | C__9H__1__2O__2S__2 = 216.31 |
Physical State (20 deg.C) | Solid |
Storage Temperature | Room Temperature (Recommended in a cool and dark place, <15°C) |
CAS RN | 55727-23-6 |
Reaxys Registry Number | 8052948 |
PubChem Substance ID | 160871490 |
MDL Number | MFCD01096981 |
Appearance | Light orange to Yellow to Green powder to crystal |
Purity(GC) | min. 98.0 % |
Purity(qNMR) | min. 98.0 % |
Melting point | 101.0 to 105.0 °C |
NMR | confirm to structure |
Melting Point | 103 °C |
HS Number | 2934.99.4400 |
3-(1,3-Dithian-2-ylidene)-2,4-pentanedione 1 (10 mmol), 4-methoxybenzaldehyde (10 mmol), and concd aq HCl (10 mmol) are added to a flask in a water bath. The mixture is heated to 60 °C under stirring. After the reaction is completed, within 15 min as indicated by TLC, the reaction mixture is cooled down to r.t. and neutralized with 10% aq NaHCO3 (10 mL). The solid product is collected by filtration and washed with H2O (3 × 30 mL). Further purification is carried out by silicagel flash column chromatography (petroleum ether/ethyl acetate = 75/1) to give 2-(4-methoxyphenyl)-1,3-dithiane in 97% yield as a white solid.
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